You'll literally be sitting on air with this highlyY portable and lightweight cushion, with a sturdy cotton cover. It's durable enough for outdoor use, easily washable, and can be inflated in seconds. Hundreds of satisfied customers are using it all over the globe, staying centered in a busy world. The Inflatable Cushion has a normal cloth cover just like a standard zafu (durable cotton/polyester blend),with a plastic ball inside. It looks just like a regular zafu, and the cover is machine-washable. How durable is it? The Inflatable Cushion can be used on bare ground and can hold people up to 150 pounds. In fact, we have not yet determined the weight limit! They are carried all over the backcountry and used for camping with great results.